var projectile;
projectile = instance_create(argument0,argument1,obj_projectile);
projectile.sprite_index = argument2;
projectile.actor_id = argument3;
projectile.damage = argument4;
projectile.on_solid = argument5;
projectile.spark_sprite = argument6;
projectile.spark_speed = argument7 * (30 / room_speed);
projectile.depth = depth;
return (projectile);
